It all depends whether you are buying or selling
try asking people for a copy and they become so rare you just dun gotta have it at the price!
when all said and done it is a first edition even if only a part of a set
Does the Guttengurg Project have any of the text?
I would personally treasure it, but then I believe in the value of the content, rather than the medium.
Its why I like Folk and Mudcat (E&OE)